Multi-strand cable with two layers having improved penetrability

A two-layer multi-strand cord comprising:

• an internal layer made up of an internal strand having at least two layers comprising:
• an internal layer made up of Q internal wires;
• and
• an external layer made up of N external wires wound around the internal layer;
• and
• an external layer made up of L>1 external strands having three layers comprising:
• an internal layer made up of Q′=1 internal wire;
• an intermediate layer made up of M′ intermediate wires wound around the internal layer with a pitch p2′;
• and
• an external layer made up of N′ external wires wound around the intermediate layer with a pitch p3′,
• wherein the external layer of the cord is wound around the internal layer of the cord in a direction of winding of the cord,
• wherein the external layer of the internal strand is wound around the internal layer of the internal strand in a same direction of winding as the external layer of the external strand is wound around the intermediate layer of the external strand, the direction of winding of the external layer of the internal strand around the internal layer of the internal strand and the direction of winding of the external layer of the external strand around the intermediate layer of the external strand being opposite of the direction of winding of the cord;
• wherein the external layer of the cord is desaturated, and
• wherein the pitches p2′ and p3′ satisfy the relationship:
• 0.36≤(p3′−p2′)/p3′≤0.57.